As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL IN CABIN WHEN APU BLEED PACKS OR ENGINE AT IDLE POWER. FOUND AFT CARGO DOOR CONTROL VALVE LEAKING AND RUNNING UP AND INTO APU INLET. REMOVED AND REPLACED SELECTOR VALVE PER AMM 52-36-15-000-001. ALSO REPLACED LEFT AND RIGHT OZONE FILTERS PER JOB CARD 26C13821001.